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<!DOCTYPE html> <html> <body> <h1>JavaScript Arrays</h1> <h2>The every() Method</h2> <p>Check if all the answers in the array is the same:</p> <p id="demo"></p> <script> const survey = [ { name: "Steve", answer: "Yes"}, { name: "Jessica", answer: "Yes"}, { name: "Peter", answer: "Yes"}, { name: "Elaine", answer: "No"} ]; document.getElementById("demo").innerHTML = survey.every(isSameAnswer); function isSameAnswer(el,index,arr) { // Return true for the first element if (index === 0){ return true; } else { // Compare the value of the previous element return (el.answer === arr[index - 1].answer); } } </script> </body> </html>
